That's interesting...I have a similar problem with my Yamaha CRW3200. I just got some new hardware (athlon 64, Asus K8N-E motherboard, SATA hard drive) and I finally got it to install but now it can't see my CD drive (although it was fine using it to install). I think it's confused because I have two IDE controllers, one for SATA and one for PATA (plain old parallel IDE). I think it's easy for Windows to get confused with multiple IDE controllers. What's the motherboard? Does it have more than two IDE connectors?